css - Vertically Stack divs inside fixed div -

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i have vertical parent container div fixed positioning , height in pixels. have child divs same width parent. how stack these child divs inside fixed parent? uanble through. please help.

if want statically, set each child div's top property how want it.

so if child divs 50px in height

#child1{ position:relative; top:50px; } #child2{ position:relative;   top:100px; }

and on


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